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2 objective questions

13. Find the area under the curve y = 3e^-x - e^x , from x = 0 to x = ln(3)/2.

3 - 2(2^1/2 )
4 - 2(3^1/2 )
1
6 - 2(5^1/2 )
7 - 2(6^1/2 )
none of these

14. Calculate, correct to the nearest hundredth,
2.25
∫(2.73x^2 - 8.41x + 7) dx =
0.5
1.55
1.69
2.27
2.88
3.81
7.01
9.44
12.54
26.71
none of these

Solution Preview

13. Find the area under the curve y = 3e^-x - e^x , from x = 0 to x = ln(3)/2.

3 - 2(2^1/2 )
4 - 2(3^1/2 )
1
...

$2.19